1165624625 has 16 divisors (see below), whose sum is σ = 1586946816. Its totient is φ = 847726000.

The previous prime is 1165624609. The next prime is 1165624631. The reversal of 1165624625 is 5264265611.

It is not a de Polignac number, because 1165624625 - 2⁴ = 1165624609 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 422489 + ... + 425238.

It is an arithmetic number, because the mean of its divisors is an integer number (99184176).

Almost surely, 2^1165624625 is an apocalyptic number.

It is an amenable number.

1165624625 is a deficient number, since it is larger than the sum of its proper divisors (421322191).

1165624625 is an equidigital number, since it uses as much as digits as its factorization.

1165624625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 847753 (or 847743 counting only the distinct ones).

The product of its digits is 86400, while the sum is 38.

The square root of 1165624625 is about 34141.2452174785. The cubic root of 1165624625 is about 1052.4130819683.

The spelling of 1165624625 in words is "one billion, one hundred sixty-five million, six hundred twenty-four thousand, six hundred twenty-five".